2220442340 has 12 divisors (see below), whose sum is σ = 4662928956. Its totient is φ = 888176928.

The previous prime is 2220442339. The next prime is 2220442361. The reversal of 2220442340 is 432440222.

It can be written as a sum of positive squares in 2 ways, for example, as 623800576 + 1596641764 = 24976^2 + 39958^2 .

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55511039 + ... + 55511078.

It is an arithmetic number, because the mean of its divisors is an integer number (388577413).

Almost surely, 2^2220442340 is an apocalyptic number.

2220442340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2220442340 is an abundant number, since it is smaller than the sum of its proper divisors (2442486616).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2220442340 is a wasteful number, since it uses less digits than its factorization.

2220442340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111022126 (or 111022124 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 23.

The square root of 2220442340 is about 47121.5697955830. The cubic root of 2220442340 is about 1304.6073871657.

Adding to 2220442340 its reverse (432440222), we get a palindrome (2652882562).

The spelling of 2220442340 in words is "two billion, two hundred twenty million, four hundred forty-two thousand, three hundred forty".